Submission #765942

#	Time	Username	Problem	Language	Result	Execution time	Memory
765942		tengiz05	Seats (IOI18_seats)	C++17	11 / 100	4066 ms	31576 KiB

seats

#include "seats.h"
#include "iostream"
#ifndef EVAL
#include "grader.cpp"
#endif

using namespace std;
vector<int> r, c;
int n, m;
void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
    n = H;
    m = W;
    r = R;
    c = C;
}

int swap_seats(int a, int b) {
    swap(r[a], r[b]);
    swap(c[a], c[b]);
    int ans = 0;
    int minx = n, maxx = -1, miny = m, maxy = -1;
    for (int i = 0; i < n * m; i++) {
        minx = min(minx, r[i]);
        maxx = max(maxx, r[i]);
        miny = min(miny, c[i]);
        maxy = max(maxy, c[i]);
        if ((maxx - minx + 1) * (maxy - miny + 1) == i + 1) {
            ans++;
        }
    }
    return ans;
}

/*

2 3 2
0 0  
1 0
1 1
0 1
0 2
1 2
0 5
0 5


*/

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 20
• Subtask 4: 0 / 6
• Subtask 5: 0 / 33
• Subtask 6: 0 / 30